.dlbg{
    /* 加载背景图 */
    background-image: url(../Register/img/qidong.png);
    /* 背景图垂直、水平均居中 */
    background-position: center center;
    /* 背景图不平铺 */
    background-repeat: no-repeat;
    /* 当内容高度大于图片高度时，背景图像的位置相对于viewport固定 */
    background-attachment: fixed;
    /* 让背景图基于容器大小伸缩 */
    background-size: cover;
    width: 100vw;
    height: 100vh;
}

.dlbt{
    border-radius: 20px;
    border: 0px;
    padding: 1vh 15vw;
    background-color: #D8E6EF;
    position: absolute;
    left: 27vw;
    top: 80vh;
    color: blueviolet;

}

.sbgg{
    color: #D8E6EF;
    position: absolute;
    left: 42vw;
    top: 85vh;
}
